Load switch by the fuse and isolating switch (or contacts) in series Xi'an load switch, wherein isolating switch (contactor) is responsible for opening and closing the circuit the normal current, the fuse disconnect responsible for all non-normal current loops, including overcurrent. Current fuse - operating time overcurrent curve ensures the action time. Switches Precautions A vertically mounted switch frame closing mechanism cable sheathing pipe shall be grounded not in series should be unloaded several minutes before touchdown B closing operation of the turning part runs without jamming closing after opening in place adequate safe distance C and load switch fuse melt when used in tandem should have immediately should be optional fault current is greater than the load switch breaking capacity to ensure the melt blown and then load switch connected to the contact portion when good opening D closing no overheating inspection should be careful to check out the porcelain on porcelain dirty crack flashing phenomenon discharge switch can not be washed with water and indoor vacuum load switch switch _ _ Lanzhou, Xi'an high load provided by the Xi'an Huayi power plant. Xian Huayi Electric Power Equipment Factory (www.xahy.com) strong, credible, in the Xi'an high-voltage circuit breakers and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Huayi electricity into the brilliant and you work for a better future!